Wire-coiling meghanism



E. a HATHAWAY AND C. LEA.

WIRE comm; MECHANISM. A

APPLICATION FILED JULY 24, I908.

31936733145 Patented Feb. 8,1921.

5 SHEETSSHEET I.

Inventors:

M'Znessea: m g Q CharlesasLeab,'

E. F. HATHAWAY AND C. LEA.

WIRE comm; MECHANISM.

' APPLICATION FILED JULY 24,1908 1,367,814. Patented Feb. 8, 1921.

5 SHEETSSHEET 2.

( 6 6 Flky' 36 I 6 43 Z7 O i 29 E 6 i'lll'i'il I W L 7 We Zneaaes: l2 /2Inventors: RM w WM fidgarFfiaiilaw m wages Lew,

A i iornqys.

E. F. HATHAWAY AND C. LEA.

WIRE COILING MECHANISM.

APPLICATION FILED JULY 24,1908.

1,367,814. Patented Feb. 8,1921.

5 SHEETSSHEE'I 3- Wz'inesac-s [nu 67750215: RMW-Hm, EdgarFHaZ/zawau(ha/"Z061, em,

E. F. HATHAWAY AND C. LEA.

WIRE comm; MECHANISM.

APPLICATION FILED JULY 24,1908. 1,367,814. Patented Feb. 8, 1921.

5 SHEETS-SHEET 4.

fifz'finesses: I n venions: awe flM Charles Lea w ew.

A zzo s E. F. HATHAWAY AND C. LEA.

WIRE comma MECHANISM.

' Patented Feb. 8, 1921.

inventors. Wz' ZZEJSe-s: v 0? A WWWMAA Charles ea,

UNITEDSTATES PATENT OFFICE.

EDGAR E-HATHAWAY, 0F DORCHESTER, AND CHARLES LEA. OF BOSTON, MASSA-CHUSETTS, ASSIGNOBS, BY MESNE ASSIGNMENTS, TO BARBER-OOLMAN COM- IPANY,ROCKFORD, ILLINOIS, A CORPORATION OF ILLINOIS.

WIRE-comma mnonemsm.

Specification of Letters Patent.

Patented Feb. 8, 1921.

Application filed July 24, 1908. Serial No. 445,160.

T 0 all whom it may concern:

Be it known that we, EDGAR F. HA'rHA- WAY and CHARLES LEA, both citizensof the United States, and residing, respectively, at Dorchester andBoston, both in the county of Suffolk and State of Massachusetts, haveinvented an improvement in VVire-Coiling Mechanism, of which thefollowing description, in connection with the accompanying drawings, isa specification, like figures on the dawings representing like parts.

The object of the invention is to provide improved mechanism for formingwire coils. in order that the principle thereof may. readily beunderstood we have disclosed a single embodiment of the invention in theaccompanying drawings, wherein Figure l is a front elevation of a wirecoiling mechanism embodying our invention;

Fig. 1 is a fragmental top plan view showing the anvil 75 and the chutes27 and 86.

Fig. 2 is a plan view thereof;

Fig. 3 is an end elevation, somewhat dlagrammatic, of the wirecontacting portions of the wire coiling means, the wire being coiled tothe right to form a left hand spring:

Fig. 4 is a similar view of the same parts, but oppositely driven tocoil the wire in the opposite direction;

Fig. 5 is a side elevation of the parts represented in Fig. 3;

Fig. 6 is an end elevation, looking from the left in Fig. 2, of themeans for driving ]the mandrel and mandrel cooperating mem- Fig. 7 is aside elevation of the parts rep resented in Fig. 6;

Fig. 8 is an underneath plan view of certain of-the operating partsunderlying the wire coiling mechanism proper;

Fig. 9 is an end elevation of the mechanism for operating the escapementand rock shafts;

Fig. 9 is a detail representing a portion of the mechanism shown in Fig.1.

Fig. 10 is an end elevation looking from the right in Fig. 1 of aPOItlOIll of the coil severing mechanism;

Fig. 11 is a left hand end elevation of a automatically tempering thecompleted coils.

Referring more particularly to the drawing and to the single embodimentof our invention therein typified, the base of the machine is indicatedat 1 in Fig. 1, whereon are supported one or more uprights 2 of anysuitable construction suitably supporting a transverse plate 3 risingfrom which are uprights 4 and 5 wherein are supported the mandrel anddriving means therefor. Power may be applied to the mechanism in anysuitable manner. Herein we have represented (see Figs. 1 and 2) anelectric motor 6 of any suitable type upon'the driven shaft 7 whereof ismounted a gear 8. While any suitable wire coiling means may be employed,we have therein represented a mandrel and mandrel cooperating member,pref erably a shaft, suitably operated in any convenient manner. Themandrel, indicated at 9, is mounted in a removable box 9' in the upright4, and fast upon one end thereof is a pinion 10 meshing with a gear 8',mounted upon a bracket 8" removably supported upon the plate 3 andmeshing with and driven by the gear 8 upon the motor shaft. Also meshingwith the gear 8' is a pinion 11 fast upon a countershaft 12, supportedin the uprights 4 and 5 and a removable bracket 12 and having fast uponthe opposite end thereof a pinion 13 meshing with a pinion 14 fast uponthe mandrel cooperating shaft 15,-which herein is represented asremovably mounted in the uprights 4 and 5 and as constmicted in twoportions having a pin and slot connection 16 permitting ready removal ofthe parts.

It has been customary heretofore to coil wire by feeding the samebetween rolls driven in opposite directions, the wire being therebydirected against a former, the rolls being relied upon to push orproject the wire forward against the former. Such constructions,however, have been defective for the reason that complete control of thewire is lost immediately after its passage between the rolls and moreparticularly in the case of delicate wires the resulting coils have beenof uneven diameter, because of the uneven action of the former thereon.Our invention comprehends a pulling action upon the wire and theconstant control of the wire during the coiling thereof, thus preventingvariations in the diameter of the coil. While this result may be accomlished in any suitable manner, we have in igs. 3, 4: and 5 representedone type of mechanism for accomplishing the desired result.

Therein the mandrel 9 is represented as supplied with wire from anysuitable source, not herein indicated. The said mandrel 9 and mandrelcooperatingshaft or member 15 are arranged in parallelism and arerepresented as driven in opposite directions and as slightly spacedapart to receive between them the wire 16. If desired, means may beemployed additional to the shaft 15 to engage the coiling wire. For thispurpose we have herein represented a presser roll 17 mounted (see Figs.1, 3, 4: and 5) upon a spindle 18 vertically supported in a bracket 19and having a suitable adjustable coil spring 20 to vary the pressure ofthe roll 17 upon the Wire. erein thebracket 19 is represented as pivotedat 21, a removabe pin 22 holding the bracket in upright position. Whendesired, the presser roll 17 may be readily withdrawn from the mandreland wire by swinging the bracket 19 to the left,

viewing Fig. 1, upon the pivot 21.

The wire to be coiled is fed between the mandrel 9 and the presser roll17, if the latter be employed, the said mandrel being driven in eitherdirection at any desired speed. Preferably the said mandrel is providedwith a groove represented most clearly at 23 in Fig. 5, wherein the wireis receive The mandrel cooperating member or shaft 15 engages the outerface of the wire and is driven at such a peripheral speed in excess ofthe peripheral speed of the bottom of the groove 23 that said shaftimparts a positive pulling or drawing action to the wire. Inasmuch asthe wire is, in the preferred embodiment of the invention, laterallyconfined by the walls of the groove 23 in the mandrel and while thuspositioned is subjected to the drawing action of the shaft 15, completecontrol of the wire is maintained throughout the coiling action and alldeforming of the coils is prevented. In Fig. 5, a wire having anelongated dimension in cross section is represented as acted upon, itbeing apparent that a wire having any desired cross section may becoiled in the manner described. The groove 23 may be made of anysuitable shape dependent upon the cross sectional shape of the wire; itis preferably formed adjacent the end of the mandrel 9, and the wire 16after passing between the mandrel and the shaft 15 issues therefrom, asrepresented in Figs. 3, 4 and 5, as a coil of thedesired diameter.Inasmuch as the hardness and temper of the wire are apt to vary,preferably we employ some means acting upon the coiling wire slightly todistend the same to a predetermined diameter; that is to say, the coilsare distended to a diameter slightly in excess of that normallyresulting from the action thereon of the mandrel 9 and shaft 15. Whilethis result may be accomplished in any suitable manner, we have hereinprovided a hook or finger 24 which, as represented in Fig. 1, is mountedfor axial and rotative adjustment in the upright 1, which for thepurpose is provided with a groove or grooves to receive the hook, a setscrew 25 being employed to retain the latter in its adjusted position.The inner end of the hook is bent as represented in Figs. 3, 4L and 5and is received within the coiled wire 16, engaging each coil as itissues from between the 95 mandrel 9 and shaft 15 and imparting theretoa distending action, the amount of which depends upon the radialposition of the hook with relation to the axis of the mandrel 9.Preferably the wire is formed 100 into a closed coil, but the coil maybe rendered open to a variable and predetermined extent in any suitablemanner, as by providing the hook with a groove 26. (see Fig. 15)positioned to receive the wire after the same 105 emerges from themandrel 9 and shaft 15. The degree of inclination of the wire in itspassage from the groove 23 in the mandrel 9 to the groove 26 in the hookdetermines the character of the coil as regards its closed or 110 openformation. It will be understood however, that the resiliency of thewire. is such that the inclination of the spires of the completed coilis less than that represented in Fig. 15.

The coiled wire may be discharged from the mechanism in any suitablemanner as a continuous length or in coils of predeterrocatory rods 30mounted in a bracket 31 rising from the base 1 of the machine.

While any suitable means may be employed to operate the severingmechanism, yet, inasmuch as preferably the wire is coiled and deliveredat a high rate of speed, we provide means acting to impart a rapidsevering action to the coil and preferably in such manner as not tointerrupt the discharge of the coiled wire. \Vhile this result may bevariously accomplished, we have herein pro vided the following mechanismwhich has been found suitable for the purpose. Suitably mounted in theframing of the machine and as represented in Fig. 2 is a short shaft 32having a pinion 33 thereon meshing with and driven by the gear 8 andprovided with a worm 34 engaging and driving the worm wheel 35 mountedupon a vertically disposed shaft 36, having upon its lower end, as shownmost clearly in Fig. 8, a beveled pinion 37 adapted to mesh with eitherbeveled gear 38 or 39 fast upon a horizontally disposed shaft 40 mountedfor rotation and longitudinal movement in suitable hangers 41-41depending from the bed 1- of the machine. Fast upon the said shaft 40,as rep resented in Fig. 8, is a collar 42, with which engages a lever 43rising through the bed 1 of the machine, as indicatedin Fig. 2, towithin convenient access of the operator, whereby either beveled gear 38or 39 may be brought into engagement with the beveled pinion 37 and theshaft 40 be thereby driven in the same direction, whether the motorshaft be driven forwardly or reversed, it be ing understood that whenthe motor shaft is reversed, the gears 38, 39 are shifted. Hence thewire may be coiled in either direction without change in direction ofrotation of the shaft 40.

In suitable hangers 44 depending from the bed of the machine we mount ashaft 45 whereon is provided escapement mechanism controlling theoperation of the coil severing mechanism. Fast upon the shaft 45 is.

ered. The said gear 46 is driven from the shaft 40 in any-suitablemanner, but preferably by pinion 47 fast upon the shaft 40 and pinions48 and 49 suitably mounted in an adjustable bracket 50 provided with asegmental slot 51 and set-screw 52 whereby the said bracket may beconnected to one of the hangers 41 in any position .of angularadjustment, so that a gear 46 of any suitable size and number of teethmay be mounted upon the shaft 45 and driven from the shaft 40. Likewisefast upon the shaft 45 is a ratchet gear 53 with which engages a pawl 8554 on one of the brackets 44 to prevent retrograde movement of saidshaft during the substitution of an interchangeable gear 46. Mountedupon the escapement shaft 45 is a coil spring one end whereof, asrepresented in Fig. 11, is secured to the ratchet '53, the opposite endbeing secured to a disk 56 loose upon a preferably reduced portion ofthe shaft 45 (see Fig. 1), the said disk being secured by a bolt 57 tothe adjacent disk 58 likewise loosely mounted upon the said shaft, aplurality of openings 59 being provided in the disk 56 to permitrotative adjustment of said disks, and hence the desired degree oftension of the spring 55 in addition to the tension imparted theretothrough the gear 46. Likewisemounted in the hangers 44 is a rock shaft60 disposed in parallelism with and above. the escapement shaft 45. Fastupon said shaft is positioned, as shown most clearly in Figs. 11

and 14, a cam 60 having cam portions 61.

and 62 adapted to be engaged in turn by a pin 63 laterally extendingfrom one face of the ratchet 53. The change gear 46 and ratchet beingdriven in the direction of the arrow upon said ratchet in Figs. 11 and14, the pin 63 engages the cam portion 61 and elevating the same turnsthe rock shaft 60 clockwise viewing Fig. 14. The continued rotation ofthe said gear and ratchet brings the pin 63 into engagement with the camportion 62, thereby rocking the shaft 60 in the opposite direction.Laterally extending from the disk 58 is a lug 64 adapted to engage insuccession the teeth 65 and 66 upon a pawl 67 fast upon the rock shaft60. When, in the rotation of the change gear 46, the pin 63 engages thecam portion 61 and rocks the shaft 60, it thereby elevates the tooth 65,and permits the lug 64-to pass the same and to be engaged by the tooth66, which has been de ressed by the elevation of the tooth 65. l pen theelevation of the cam portion 62 by the pin 63 and the consequent rockingof the shaft 60 in the opposite direction, the tooth 66 of the pawl 67is ele' vated, thereby releasing the lug 64 and permitting anearlycomplete rotation of the disks 56 and 58 under tension of thespring 55, which is thus intermittently released, further rotation ofsaid disks being prevented by the reengagement of the lug 64 with thetooth 65, as'represented in Fig. 12. The tension of the spring 55 isrestored by the continued rotation of the gear 46, which is, in thisembodiment of the invention, always rotated in the same direction,whether the wire be coiled to the right or to the left. Preferablyintegrally formed with the disk 58 or with a hub projecting therefrom isa crank disk 68, represented most clearly in ,Fig. 1, and having thereona crank pin 69 connected by a link 70 to a cross head 71 connecting thelower ends of the vertically reciprocatory rods 30.

travel thereof. If desired, and as herein represented, a dash pot 72 ismounted upon one of the hangers 44, the piston 73 thereof beingconnected by a link 74 with the crank pin 69 to cushion the upwardstroke of the severing blade 28. Preferably, an anvil 7 5 of anysuitable material and shown most clearly in Fig. 10 is provided toreceive the severing blow of the blade 28, the said anvil being mountedin the bracket 31. If desired, the anvil may be cushioned, as byproviding a piece of hard rubber 76, which may be compressed to anydesired extent, as

by an adjusting screw 77 mounted in the bracket 31 and engaging thelower face of said rubber cushion.

If desired and preferably we provide means to spread apart the spires ofthe coil at the point where the latter is to be severed so as to presentunobstructedly that portion of a spire that is in'engagementwith the an;'vil 75 to the action of the severing blade 28.

This result may be accomplished in any suitable manner, but preferablyweprovide means acting in conjunction with the discharging means for thesevered coil. While such mechanism be operated in any suitable manner,we have herein provided upon the ratchet 53, as shown most clearly inFig. 11, a cam 79 upon the face of the ratchet 53 opposite the pin 63,to engage the end 80 of a lever pivoted at 81 in ahanger depending fromthe bed of the machine, as represented most clearly in 1, the oppositeend 82 of the lever being pivotally connected by means of a link83having a right 7 and left screw threaded connection to the projectingportion 84 of a rock shaft 85 loosely mounted in the framing of themachine and having secured thereon, but preferably in 'a removablemanner, a discharging trough 86. As shown in Fig. 1, the bottom of thetrough 86 is cut away from a point adjacent to the axis-85 to the anvil75, the intervening space being closed by a sta tionary plate27 which isvirtually a continuation of the chute 27. Engagement-of the lug 79 withthe lever arm 80 depresses the link 83 and .thereby' the dischargingtrough 86. As the trough 86 swings down, the weight of the coil lying'insaid trough causes the coil to stretch for some little distance in theregion of the shear, thus spreading apart the spires of the coil. Thetiming of the parts is therefore such that the commencement of thedownward movement of the blade 28 into.

the discharging trough 86 slightly precedes the severing stroke of theblade. Such downward movement of the "discharging trough continues afterthe severing action, and in the present embodiment of our inven tion,the outer end of the said trough is revCeived in a suitable opening inthe table whereon the mechanism is mounted.

If desired we may provide the trough 86 with a valve permitting at theproper time the discharge of the severed coil. Herein for-the purpose,we have represented most clearly in Fig. 1 a valve 87 mounted .in asleeve 88 laterally extendingfrom the trough 86. The stem of said valveis provided with a cross arm 89 adapted in the downward movement of thetrough 86 to straddle an openin 90 in the table 91 (see Figs. 1 and 16whereon the machine may be supported, the end of the trough dependinginto the said opening and, when the valve is opened, discharging thecoil into any suitable receptacle, and herein into the chute 92.-

The elevation of the trough 86 is assisted by I a weight 93.

If desired, we may provide" means for tempering the completed coils.Herein for the purpose we have provided means for automaticallytempering the coils discharged from a plurality of wire coilingmechanisms. Referring more particularly to Fig. 16, the chutes 92discharge the coils onto a preferably steel endless belt 94, suitablysupported and driven continuously at the proper rate of speed in anysuitable manner, as by a gear 95 driven by a pulley 96. The belt 94passes through a suitable tem ering furnace 97 that may be heated as byunsen burners 98 to any proper temperature, which is maintained constantby a thermostat 99. The chutes 27, 86 and 92 and the conveyor 94constitute means for guiding the coils for longitudinal movement andserve to restrain the coils against entanglement. The tempered coilsuponemerging from the furnace are discharged by a chute 100 into anysuitable receptacle 101.

The wire to be coiled is fed between the mandrel and the presser roll,the mandrel cooperating member or shaft 15 engaging the outer face ofthe wire and being driven at such peripheral speed in excess of thespeed of the mandrel 9, that a positive pulling or drawing action isimparted to the wire, complete control of the wire being maintainedthroughout the coiling action, so that all deforming of the coils isprevented. The coils are di -ended to a predetermined diameter, which ispreferably slightly in excess of that normally resulting from the actionthereon of the mandrel 9 and shaft 15. The coiled wire is automaticallysevered into predetermined lengths by suitable mechanism and preferablywithout stopping the movement of the wire. The severed coils areconveyed automatically through a suitable tempering mechanism.

Having thus described one type or embodiment of the invention, we desireit to be understood that although specific terms are employed, they areused in a generic and descriptive sense and not for purposes oflimitation, the scope of the invention being set forth in the followingclaims.

Claims.

1. Mechanism for acting upon wire, comprising a wire coiling mechanismcomprising a mandrel, means to rotate the same, whereby a wire presentedthereto may be coiled thereabout, a rotatable wire drawing deviceengaging the wire coiled on the mandrel, means to rotate said device ata speed in excess of that of the mandrel, thereby to draw the wire whilecoiled on the mandrel, and means for severing the coiled wire.

2. A wire coiling mechanism, comprising a mandrel mounted and arrangedto receive v thereabout a coiling wire, means to rotate the same wherebya wire presented thereto may be coiled thereabout, a rotatable Wiredrawing device engaging the outer surface of the wire coiled on saidmandrehmeans to rotate said device at a surface speed in excess of thatof the mandrel, thereby to draw the wire while coiled on the mandrel,and means for severing the coiled wire.

3. A wire coiling mechanism, comprising a mandrel mounted and arrangedto receive thereabout a coiling wire, means to rotate the same wherebyawire presented thereto may be coiled thereabout, a rotatable wiredrawing device engaging the outer surface of the wire coiled on themandrel, means to rotate said device at a surface speed in excess ofthat of the mandrel, thereby to draw the wire while coiled on themandrel, and automatically actuated means for severing the coiled wire.

4. A wire coiling mechanism, comprising a mandrel mounted and arrangedto receive thereaboutacoiling wire, means to rotate the same, wherebythe wire presented thereto may be coiled thereabout, said mandrel havinga wire receiving groove, a rotatable wire drawing device engaging theouter surface of the wire in said groove upon the mandrel, means torotate said device at a surface speed in excess of the speed of the baseof said groove, thereby to draw the wire while coiled on the mandrel insaid groove, and means for severing the coiled wire.

5. Mechanism for acting upon wire comprising a wire coilinginstrumentality, a wire severing instrumentality, means for periodicallyoperating said-severing instrumentality, and a controller operativelyconnected to said severing means to vary the periodicity of actionthereof.

6. Wire coiling means including a mandrel whereon the wire is coiled anda mandrel cooperating member and a coil distending instrumentalityindependent of said means and positioned to distend the spires of thecoil as it is' coiled by said means.

7. Mechanism for acting upon delicate fine wire comprising means to coilthe Wire,

means to sever the coiled wire while the wire is still engaged by thecoiling means, means to heat the severed lengths of coiled wire, andmeans for guiding said lengths to move longitudinally from the severingmeans to the heating means.

8. Wire coil forming mechanism comprising I a mandrel and mandrelcooperating member to coil the same, and means, extraneous to andcooperating with said mandrel and member to distend the diameter of thecompleted coil.

9. Wire coil forming mechanism comprising a mandrel and mandrelcooperating member to coil the wire, means to drive said member at ahigher surface speed than the wire supporting portion of the mandrel,and

-means extraneous to and cooperating with saidmandrel and member todistend the diameter of the completed coil.

10. Wire coiling mechanism comprising a mandrel, means to rotate thesame thereby to coil thereon a wire presented thereto, a

- wire drawing instrumentality engaging the wire coiled upon themandrel, and means to impart a surface movement to said drawinginstrumentality in excess of the surface speed of rotation of the wiresupporting portion of the mandrel, thereby to effect a drawing actionupon said wire.

11. Wire coiling mechanism comprising a mandrel, rotating meanstherefor, a wire drawing instrumentality engaging the Wire upon themandrehand means to move the same while in contact with said wire at a.superficial speed exceeding that of the rotation of. the wire supportingportion of the mandrel, thereby to effect a drawing action upon saidwire.

12. Wire coil forming mechanism comprising a mandrel, a mandrelcooperating member to coil the wire, means to rotate said member at ahigher surface speed than the wire supporting portion of the mandrel,and means extraneous to and cooperating with said mandrel and member todis tend the diameter of the completed coil.

. l3. Wire coiling mechanism ,comprisin a mandrel, means to rotate thesame there y to coil thewire thereon, a shaft ad'acent said mandrel andbetween which an said mandrel the wire to be coiled may be presented incontact with both, and means to rotate said shaft at a greaterperipheral speed than the wire supporting portion of 'said mandrel,thereby to effect a drawing prising a mandrel, a mandrel cooperatingmember to coil the Wire, means to rotate said member at a higher surfacespeed than the wire supporting portion of the mandrel,

and means extraneous to and cooperating with said mandrel and member andpositioned to enter the completed coil and distend the diameter thereof.4

15. Mechanism for acting upon wire c omprising means to coil wire andmeans extraneous to said wire coiling means and adapted to enga e thecompleted spires of the coil and to istend the same,to a predetermineddiameter. I

16. Mechanism for acting upon wire comprising means to coil the wire,means extraneous to said wire coiling means-and adapted to engage thecompleted spires of the coil and to distend the same to a predetermineddiameter, and means to vary the amount of such distention.

17. Mechanism for acting upon wire com- 18. Mechanism for acting uponwire comprising means to coil the wire, and coil distending meansextraneous toand independent of said Wire coiling means and positionedinteriorly to en age the coils thereof, thereby to distend t e same.

19. Wire coiling mechanism comprising a mandrel, means to rotate thesame. whereby a wire presented thereto may be coiled thereabout, meanswhereby the coil may be formed as a closed or open one, and wire 40drawing means engaging the wire and drawing the same while coiled aboutthe'mandrel.

20. Mechanism for acting-upon wire comprising means to coil the wire.means extraneous to said wire coiling means and adapted to en age thecompleted spires of the coil, there y to distend the same to apredetermined diameter, and means for controlling and fixingthe degreeof openness of the formed coil.

21. Wire coil forming mechanism comprising means to coil' the wire, andmeans distinct therefrom and positioned within the coil to control andfix the diameter there of and the degree of separation of the spires ofthe coil.

' 22. Wire coil forming mechanism having a mandrel, means to rotate thesame, and a hook or finger 24 extending within the coil and engaging thesame.

23. Wire coil forming mechanism, coil severing mechanism, and meansaxially to distend, for the action of the severing mechanism, the spiresof the coil adjacent the spire that is in the path of the severingmechanism.

distend the spires of the coil adjacent to a spire in the path of thesevering mechanism. 27. Vire coil forming mechanism. coil severingmechanism, and means axially to distend the completed coil in the pathof said severing mechanism preliminary to the .scverin operation.

28. 1 ire coil forming mechanism comprising means to coil the wire ineither direction, coil severing means, and escapement mechanism tooperate the severing means.

' 29. ire coil forming mechanism comprising a shaft adapted to bedrivenv in either direction, a wire coiling mandrel adapted to be driventhereby in either direction. coil severing means, escapement mechanismhaving movement of rotation to operate the severing means. andconnections intermediate said shaft and the escapement mechanismpermitting the reversal of direction of said shaft without change indirection of rotation of the'escapement mechanism. 30. \Vire coilforming mechanism comprising a shaft adapted to be driven in eitherdirection. a wire-coiling mandrel adapted to be driven in .eitherdirection therefrom. a shaft driven by said first shaft, connectionsbetween said shafts permitting the continued rotation of the secondshaft in the same direction upori'reversal of said first shaft,escapement mechanism including a shaft driven from said second shaft.and coil severing mechanism operated by said escapement mechanism.

31. Escapement mechanism for wire coiling mechanism comprising anescapement shaft. a spring connected thereto and tensioned thereby. arock shaft, a rotary member connected to said spring and held fromrotation by said rock shaft, means to rock said shaft, therebyintermittently to release said rotary member, a driving shaft adapted tobe driven in either direction and driving connections between the sameand said escapement shaft.

32. Wire coil forming mechanism and spring operated coil severing meanscoopcrating therewith.

-33. 'Wire coil forming mechanism, a reciprocatory severing blade, andspring actuated means to impart a severing movement to the blade and toreturn the same to normal position.

34. Escapement mechanism for wire coiling mechanism comprisingescapement shaft 45, spring connected thereto, disk 56, rock shaftpermitting intermittent rotation thereof, a driving shaft adapted to berotated in either direction, shaft 40 in driving relation with theescapement shaft, and connections permitting the reversal of the drivingshaft without reversal of shaft 40.

35. Wire coil forming mechanism com-- prising a mandrel, means to rotatethe same in either direction, a rotary wire drawing member engaging theforming coil, and means to rotate said member in either direction.

36. \Vire coil forming mechanism comprising mandrel 9, means to rotatethe same in either direction, shaft 15 adjacent said mandrel and adaptedto contact with the coil forming thereon, and means to rotate thesame-in either direction and at a greater surface speed than themandrel.

37. Vire coil forming mechanism com prising a mandrel 9, gear 10thereon, shaft 15 adjacent'said mandrel, counter shaft 12, gear 11thereon, means to rotate said gear 11, and transmitting gearing uponcountershaft 12 and shaft 15.

38. Wire coil forming mechanism comprising uprights 4 and 5, mandrel 9mounted in upright 4 and having gear 10, shaft 15'and countersliaft 12mounted in uprights 4 and 5, gear 11 upon countershaft 12, andtransmitting gearing 13 and 14 upon countershaft 12 and shaft 15.

39. Viire coil forming mechanism comprising a mandrel grooved to receivethe wire coiled thereabout, mandrel rotating means, a shaft adjacentsaid mandrel and adapted to contact with the wire in said groove andmeans to rotate said shaft at a surface speed exceeding that of the baseof said groove.

40. Wire coil forming mechanism comprising a rotary mandrel whereon thewire may be coiled, means cooperating with the mandrel to complete thecoil, and means independent of and extraneous to said mandrel andcooperating means to expand the. completed coil to a diameter exceedingthat resulting from the operation of the mandrel.

41. ire coil forming mechanism comprising a rotary mandrel whereon thewire may be coiled, means cooperating with the mandrel to complete thecoil, and means independent of and extraneous to said mandrel andcotiperating means disposed within the coil and adjustable at varyingradial distances from the center of rotation of the mandrel to expandthe diameter of said coil.

42. ire coil forming mechanism comprising means to coil the wire. amember to deliven the completed coil in a direction axially of the coil,and means to impart coil discharging movement thereto.

43. ire coil forming mechanism comprising means to coil the wire, coilsevering means, and oscillatory delivering means for the severed coil.

44. Wire coil forming mechanism comprising means to coil the wire, wiresevering means, means to guide the coil to the severing means,discharging means for the severed coil to discharge the coil in thedirect'ion of the axis of the. coil, and means to impart dischargingmovement to said di'scharging means.

45. Wire coil forming mechanism comprising means to coil the wire,severing means, and a change gear operatively connected with thesevering means to determine the-length of the severed coil.

46. 'Wire coil forming mechanism comprising means to coil the wire, coilsevering means, and a change gear determining the periodicity of actionof the severing means.

47. lVire coil forming mechanism comprising meansto coil the wire, coilsevering means, spring actuated escapement mechanism, and means to varythe primary tension of the spring thereof.

48. \Vire coil forming mechanism comprising means to coil the wire, coilsevering means, and coil discharging means having provisions to presenta momentarily distended portion of the coil to the action of thesevering means.

49. Wire coil forming mechanism comprising means to coil the wire, coilsevering means, and means to present a momentarily distended spire tothe action of the severing means.

50. W'ire coil forming mechanism com prising means to coil the wire, asevering blade having a path of movement toward and from the coil, and aresilientlysupported anvil positioned in the path of movement of saidblade.

51. \Vire coil-forming mechanism comprising means to coil the wire, acoil severing blade, means to reciprocate the same,'an anvil for saidblade, a resilient support for the anvil, and an adjustable backing forsaid support.

52. ire coil forming mechanism comprising wire coiling means andindependent, continuously acting, coil distending means 'to distend to auniform diameter the coil formed by said wire coiling means.

53. Vire coil forming mechanism comprising wire coiling means andindependent coil distending means to distend to a uniform maximumdiameter the diameter of the wire coiled by said wire coiling means.

54. lVire coil forming mechanism comprising in combination distinct butsimultaneously acting wire coiling means and wire drawing means, andmeans engaging the formed coils interiorly thereof to distend them to apredetermined, uniform, maximum diameter.

55. Wire coil forming mechanism comprising means to coil the wire to asubstantially uniform diameter throughout, severing mechanism, means todischarge the severed coils individually in the direction of their axesfor subsequent treatment, and means to impart coil discharging movementto said means.

56. Mechanism for acting upon delicate fine wire comprising means tocoil the wire, means to sever the wire into predetermined lengths, meansto heat the severed lengths of coiled wire, and means for guiding saidlengths to move longitudinally from the severing means to the heatingmeans, said guiding means acting to restrain said lengths againstentanglement during their travel from the severing means to the heatingmeans.

57. /Vire coil forming mechanism comprising in combination wire coilingmeans, wire severing means, severed coil discharging means, temperingmeans, and co-acting traveling means receiving he coil from thedischarging means and constructed and arranged to convey it through thetempering means.

58. Wire coil forming mechanism comprising in combination means to feedan uncoiled wire and successively acting coiling means, severing means,discharging means, tempering means, and a conveyer between saiddischarging means and the tempering means.

59. Wire coil forming mechanism comprising coiling means, coildistending means distinct from said coiling means, coil spreading means,and severing means active upon the coil when spread.

60. Wire coil forming mechanismcomprising coiling means, coil distendingmeans distinct from the coiling means, means to spread the completedcoil, means to sever the coil while spread, means to discharge thesevered coil, and means to impart discharge ing movement to saiddischarging means.

61. Mechanism for acting upon wire comprisingwire coiling means,periodically acting wlre severing means, and controlling means forvarying the periodicity of action of the severing means.

62. Mechanism for acting upon wire comprising coiling means, a guidearranged to receive the coil emerging from the coiling means and guidesaid coil for longitudinal movement, a second guide arranged to receivethe coil from the first guide and guide the coil for longitudinalmovement, coilsevering means arranged to operate between said guides,the second guide being arranged to swing into an inclined position todischarge the severed length of wire, and coiltempering means arrangedto receive the length of wire discharged by the second guide.

63. Wire coiling mechanism comprising a mandrel, means to rotate thesame whereby a wire presented thereto may be coiled thereabout, wiredrawing means positioned adjacent to the mandrel, so as to engage theouter surface of the wire coiled thereon, and means to move said wiredrawing means at a higher surface speed than the wire bearing surface ofthe mandrel thereby todraw the wire.

64E. Wire coil forming mechanism comprising means to coil the wire andcoiled wire distending means distinct from and extraneous to saidcoiling means and internally engaging the completed coil, thereby todistend the diameter of the completed coil.

65. Wire coiling mechanism comprising a mandrel, means to rotate thesame, whereby a wire presented thereto may be coiled thereabout, meansto control the open or closed character of the coil, and wire drawingmeans located adjacent to the mandrel and positioned to engage the wireand draw the same while coiled about the mandrel.

66. Wire coil forming mechanism comprising means to coil the wire,coiled wire distending means distinct from but positioned adjacent tothe Wire coiling means to distend the diameter of the coil, andcontrolling means to fix the degree of open ness of the formed coil.

67. Wire coil forming mechanism comprising means to coil the wire, anddiameter fixing means distinct therefrom and positioned within thecompleted coil and adapted to press thereon to fix the character thereofand the degree of separation of the spires of the coil.

68. vVire coil forming mechanism, coil severing mechanism and coiledWire distending means positioned to engage and axially to distend thespires of the coil adjacent a spire in the path of action of thesevering mechanism.

69. Wire coiling forming mechanism, coil severing mechanism, and coiledwire distending means positioned adjacent the latter and operatingaxially to distend the coil in the path of said severing mechanismpreliminary to the severing operation.

70. Wire coil forming mechanism, coil rotate the same whereby a wirepresented thereto is coiled thereabout, a wire drawing instrumentalitypositioned adjacent the mandrel and in relation thereto to engage theouter surface of the wire as it is being coiled about the mandrel, andmeans to impart a surface speed to said instrumentality in excess of thesurface speed of rotation of the mandrel thereby to effect a drawingaction upon the wire. 7

7 3. Mechanism for acting upon wire com-' prising a wire receivingmandrel, means to rotate the same whereby a wire presented thereto iscoiled thereabout, a wire drawing instrumentality positioned adjacent'the mandrel and in relation thereto to engage the outer surface of thewire as it is being coiled about the mandrel, means to impart a surfacespeed to said instrumentality in excess of the surface speed of rotationof the mandrel, and serving means forthe coiledwire thereby to effect adrawing action upon the wire.

74. Mechanism for acting upon wire com prising a wire receiving mandrel,means to rotate the same whereby a wire presented thereto is coiledthereabout, a co-acting instrumentality to distend the coil when uponsaid mandrel, a rotatable wire drawinginstrumentality positionedadjacent the mandrel and in relation thereto to engage the wire coiledupon the mandrel, and means to rotate said wire drawing instrumentalityat a greater surface speed than that of the mandrel.

75. Mechanism for acting upon wire comprising a wire receiving mandrel,means to rotate the same whereby a wire presented thereto is coiledthereabout, a co-acting instrumentality to distend the coil when uponsaid mandrel, a rotatable wire drawing instrumentality positionedadjacent the mandrel and in relation thereto to engage the wire coiledupon the mandrel, means to rotate said wire drawing instrumentality at,a greater surface speed than that of the mandrel, and severing meansfor the coiled wire.

76. Wlre c011 forming mechanism, coil severing mechanism operatingtransversely to the axis of the coil, and means to distend the coillongitudinally and eccentrically adjacent said severing mechanismpreliminary to the severing operation.

7 7 Wire coil forming mechanism, coil severing mechanism reciprocatingtransversely to the axis ofthe coil, and means to distend the coillongitudinally and eccentrically adjacent said severing mechanismpreliminary to the severing operation.

78. Wire coil forming mechanism, intermittently ,acting coil severingmechanism, driving means for said severing mechanism, said meansoperating to store up power while said severing mechanism is inoperativeand to deliver. it in the action thereof.

79. Wire coil forming mechanism, intermittently acting coil severingmechanism, continuously actuated driving means for said severingmechanism, said means operating to store up power while said severingmechanism is inoperative and to deliver it in the action thereof.

80. Wire coil forming mechanism, intermittently acting coil severingmechanism,

driving means for said severing mechanism,

said means operating to tension a spring 1 while said severing'mechanismis inactive 81. Mechanism for acting upon wire comprising means to coila delicate fine wire while col-d, means to temper said wire aftercoiling, and automatically acting means to deliver the coiled wire fromthe coiling means to and through and to discharge it from said temperingmeans.

82. Mechanism for acting upon wire comprising means to coil a delicatefine wire, means to sever the coiledwire, means to temper the saidsevered wire, and continuously acting means to pass the said severedcoils to and through said tempering means.

83. Mechanism tor acting upon wire com prising means to coil a delicatefine wire while cold into a closed coil having contacting spires, meansto temper said 'wire after coiling, and automatically acting means todeliver the coiled wire from the coiling means to and through the saidtempering means.

Intestimony whereof, we have signed our names to this specification inthe-presence of two subscribing witnesses.

' EDGAR F. HATHAWAY.

CHARLES LEA.

